Security element for a value and / or security document
2012
The present invention relates to a security element for a value and / or security document on a transparent layer, for example a film (1, 1 ') is arranged, wherein the security element comprises a first periodic optical structure, for example a line screen (10, 30, 30 ') or a dot pattern which forms a first coating on the first side of the transparent layer, and a second periodic optical structure, for example a line screen (20, 40, 40', 40 '') or dot screen which forming a second coating on the first side of the transparent layer opposite second side. In order to achieve a better copy protection, the first optical structure and the second optical structure is such preferably overlapping arranged to an outside observer under a certain predetermined angle (α) or illumination angle show a color change effect, wherein the first coating of a first color and the second coating comprises at least a second color which is different from the first color.
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